Status: U.S. intervention reported by the Financial Times; complete official transaction data remain pending
WASHINGTON/TOKYO, August 1, 2026 — The United States reportedly entered the currency market to purchase Japanese yen after Tokyo took action to halt the currency’s slide toward its weakest level in approximately four decades.
The U.S. Treasury’s reported purchase on Friday would mark Washington’s first coordinated yen-support operation with Japan in more than a decade. Reuters cited a Financial Times report concerning the transaction.
The yen had recently weakened to approximately 163.99 against the U.S. dollar. It subsequently gained more than 3%, reaching around 157.8 per dollar.
Central-bank data indicated that Japan may have used as much as $58.97 billion in foreign currency reserves during its own yen-buying operation. Japanese authorities had not yet released a complete account of the intervention.
U.S. Treasury Secretary Scott Bessent previously described the yen as undervalued. Washington also reportedly advised banks to be prepared for possible action through the Federal Reserve Bank of New York.
Why it matters: A stronger yen can reduce Japan’s cost of importing fuel, food and industrial materials. Coordinated government intervention, however, can also create sudden movements across global currency, stock and bond markets.
